Osteoarthritis Dx and Tx Flashcards
Can pts with osteoarthritis present with mono-, oligo-, or polyarthritis?
- YES
What are the symptoms of osteoarthritis?
- PAIN= localized to characteristic joints.
- STIFFNESS= generally less than 15 mins duration.
- onset gradual and additive
- acute and intermittent flares
Does pain from osteoarthritis become more aggravated or improve with activity?
- aggravated
* contrast to ankylosing spondylitis, which improves with activity.
Will 80% of pts over age 55 show x-ray evidence of osteoarthritis?
- YES
* more women than men
What are the risk factors for OA?
- age
- obesity
- trauma
- occupational hx
- genetic factors
In contrast to RA, what type of disease is osteoarthritis?
- disease of CARTILAGE, where increased water content leads to softening, fissuring, and microfractures, resulting in sclerosis and bone cysts.
What is the hallmark of osteoarthritis (OA)?
- EBURNATION and new bone formation
Is osteoarthritis a non-inflammatory disease?
- YES, but we will see microscopic inflammation.
What are the types of idiopathic (primary) OA?
- localized
- generalized (Kellgren-Moore).
What will you classically see in the DIPs of pts with OA?
- Heberden’s nodes
What will you classically see in the PIPs of pts with OA?
- Bouchard’s nodes
What is secondary OA?
- brought on by trauma, prior bone disorder (aseptic necrosis, infection, RA), neuropathic disorder (Charcot’s), metabolic disorder (alkaptonuria, wilson’s, hemochromatosis), or congenital disorder.
What medication can lead to avascular necrosis (usually of the femoral head)?
- corticosteroids
What age does OA usually occur?
- over 40
What is the joint distribution of OA?
- DIP, PIP, first CMC, knee, hip, first MTP, spine
